Pengbo, Simon
We received the samples S1 and S5 back from France after their annealing.
Before we started measuring the absorption coefficient, we inspected the samples and we discovered some damages on the edges of both samples. Interestingly, the damages are only on one side (see attached photos).
The measuremetns started with S5 and are ongoing. However, before setting the sample into the sample holder, we cleaned it with FC on both sides.